.page-contact {
  --pc-gap: clamp(28px, 5vw, 56px);
  padding-top: calc(var(--bar-h) + clamp(12px, 2vw, 26px));
  color: var(--ink);
}

.page-contact .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.page-contact .crumbs a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .crumbs a:hover {
  color: var(--ink);
  border-bottom-color: var(--red);
}

.page-contact .crumbs__sep {
  color: var(--rule);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  padding: clamp(20px, 3vw, 38px) 0 clamp(38px, 6vw, 76px);
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: clamp(34px, 5vw, 56px);
  align-items: center;
}

.page-contact .pc-hero__copy .eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--red);
  border-left: 4px solid var(--red);
  padding-left: 10px;
  margin: 0 0 18px;
}

.page-contact .pc-hero__copy h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(38px, 7.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-contact .pc-hero__hl {
  background: var(--red);
  color: var(--paper);
  padding: 0 0.14em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.page-contact .pc-hero__copy .lead {
  max-width: 34em;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.78;
  color: var(--ink-soft);
  margin: 0 0 26px;
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .pc-hero__media {
  position: relative;
  margin: 0;
  padding: 14px 0 0 14px;
}

.page-contact .pc-hero__media::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 40%;
  background: var(--blue);
  transform: skewY(var(--skew-a));
  z-index: 0;
}

.page-contact .pc-hero__media img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--ink);
  background: var(--paper-layer);
}

/* ---------- 主双栏 ---------- */
.page-contact .pc-main {
  padding: clamp(30px, 5vw, 64px) 0 0;
}

.page-contact .pc-main__grid {
  display: grid;
  gap: clamp(30px, 4vw, 52px);
  align-items: start;
}

/* 墨底联系卡 */
.page-contact .pc-card {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(24px, 3.2vw, 32px);
  border: 1px solid var(--ink);
}

.page-contact .pc-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--red) 0 50%, var(--cyan) 50% 100%);
}

.page-contact .pc-card__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-contact .pc-card__lead {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 240, 230, 0.78);
}

.page-contact .pc-card__list {
  margin: 0 0 22px;
  padding: 0;
}

.page-contact .pc-card__item + .pc-card__item {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--hair-inv);
}

.page-contact .pc-card__k {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-contact .pc-card__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.03em;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

.page-contact .pc-card__v--addr {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0;
  word-break: normal;
}

.page-contact .pc-card__hours {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 18px;
  border-top: 1px solid var(--hair-inv);
}

.page-contact .pc-card__hours-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 30px);
  letter-spacing: 0.04em;
  color: var(--paper);
  line-height: 1;
}

.page-contact .pc-card__hours-lbl {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(245, 240, 230, 0.7);
}

.page-contact .pc-card__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(245, 240, 230, 0.72);
}

/* ---------- 右侧内容流 ---------- */
.page-contact .pc-flow > .pc-sec + .pc-sec {
  margin-top: clamp(44px, 6vw, 76px);
}

.page-contact .pc-sec__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 800;
  padding-left: 14px;
  border-left: 6px solid var(--red);
}

.page-contact .pc-sec__lead {
  margin: 0 0 28px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 技能树式步骤 */
.page-contact .pc-tree {
  list-style: none;
  margin: 0;
  padding: 0 0 0 38px;
  position: relative;
}

.page-contact .pc-tree::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(180deg, var(--red), var(--blue));
}

.page-contact .pc-tree__node {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 32px);
}

.page-contact .pc-tree__node:last-child {
  padding-bottom: 0;
}

.page-contact .pc-tree__no {
  position: absolute;
  left: -38px;
  top: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  background: var(--paper);
  border: 2px solid var(--ink);
}

.page-contact .pc-tree__node--red .pc-tree__no {
  border-color: var(--red);
  color: var(--red);
}

.page-contact .pc-tree__node--blue .pc-tree__no {
  border-color: var(--blue);
  color: var(--blue);
}

.page-contact .pc-tree__title {
  margin: 2px 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .pc-tree__desc {
  margin: 0 0 10px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .pc-tree__desc a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-tint);
}

.page-contact .pc-tree__desc a:hover {
  border-bottom-color: var(--blue);
}

.page-contact .pc-tree__time {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  border-top: 1px solid var(--rule);
  padding-top: 8px;
}

.page-contact .pc-tree__time b {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

/* 需求标签切换 */
.page-contact .pc-req {
  position: relative;
}

.page-contact .pc-req__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .pc-req__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-contact .pc-req__tab {
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  font-size: 13px;
  letter-spacing: 0.04em;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  user-select: none;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-contact .pc-req__tab:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.page-contact .pc-req__panel {
  border-left: 3px solid var(--red);
  padding-left: clamp(14px, 2vw, 22px);
}

.page-contact .pc-req__ptitle {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
}

.page-contact .pc-req__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .pc-req__list li {
  position: relative;
  padding: 11px 0 11px 26px;
  border-bottom: 1px solid var(--hair);
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-contact .pc-req__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 10px;
  height: 2px;
  background: var(--red);
}

.page-contact .pc-req__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .pc-req__note a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-tint);
}

.page-contact .pc-req__note a:hover {
  border-bottom-color: var(--blue);
}

@supports selector(:has(*)) {
  .page-contact .pc-req__panel {
    display: none;
  }

  .page-contact:has(#req-media:checked) .pc-req__panel[data-for="req-media"],
  .page-contact:has(#req-api:checked) .pc-req__panel[data-for="req-api"],
  .page-contact:has(#req-content:checked) .pc-req__panel[data-for="req-content"],
  .page-contact:has(#req-support:checked) .pc-req__panel[data-for="req-support"] {
    display: block;
  }

  .page-contact:has(#req-media:checked) .pc-req__tab[for="req-media"],
  .page-contact:has(#req-api:checked) .pc-req__tab[for="req-api"],
  .page-contact:has(#req-content:checked) .pc-req__tab[for="req-content"],
  .page-contact:has(#req-support:checked) .pc-req__tab[for="req-support"] {
    background: var(--blue);
    border-color: var(--blue);
    color: var(--paper);
  }

  .page-contact .pc-req__radio:focus-visible + .pc-req__tabs .pc-req__tab {
    outline: 2px solid var(--red);
    outline-offset: 2px;
  }
}

/* 回复节奏 */
.page-contact .pc-timing {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-contact .pc-timing__item {
  background: var(--paper);
  padding: clamp(18px, 2.6vw, 26px);
}

.page-contact .pc-timing__head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 10px;
}

.page-contact .pc-timing__num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--blue);
}

.page-contact .pc-timing__unit {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.page-contact .pc-timing__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-contact .pc-timing__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-contact .pc-timing__foot a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-tint);
}

.page-contact .pc-timing__foot a:hover {
  border-bottom-color: var(--blue);
}

/* ---------- 到访说明纸色带 ---------- */
.page-contact .pc-visit {
  margin-top: clamp(48px, 8vw, 96px);
  padding: clamp(34px, 5vw, 66px) 0;
  background: var(--paper-layer);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.page-contact .pc-visit__in {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-contact .pc-visit__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 800;
  padding-left: 14px;
  border-left: 6px solid var(--blue);
}

.page-contact .pc-visit__text {
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-contact .pc-visit__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
}

.page-contact .pc-visit__meta-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .pc-visit__meta-k {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.page-contact .pc-visit__meta-v {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .pc-visit__media {
  margin: 0;
  border: 1px solid var(--ink);
  background: var(--paper);
}

.page-contact .pc-visit__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-contact .pc-visit__in {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  }
}

@media (min-width: 960px) {
  .page-contact .pc-main__grid {
    grid-template-columns: minmax(280px, 348px) minmax(0, 1fr);
    gap: clamp(36px, 4vw, 60px);
  }

  .page-contact .pc-card {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
  }
}

@media (min-width: 700px) and (max-width: 959px) {
  .page-contact .pc-timing {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-contact .pc-hero__media {
    padding: 10px 0 0 10px;
  }

  .page-contact .pc-hero__media::before {
    width: 52%;
    height: 34%;
  }

  .page-contact .pc-req__tab {
    flex: 1 1 auto;
    justify-content: center;
  }

  .page-contact .pc-visit__meta {
    flex-direction: column;
    gap: 14px;
  }
}